Is their any change to the acc/atk points per level of combat skill over 300? I remember it was hypothesized for a while that it might change over 300 in some way, but never saw anything to confirm/deny it.

In case its unclear, i mean the stat growth pattern from combat skill. ie: 1-200 1combat skill=1acc/1atk. 201+ 1combat skill=0.9acc/1atk. Is it still 0.9acc over 300?